Door-check.



J. J. SANTIN.

DOOR CHECK.

. 7 APPLICATION FILED AUG-25 I915 I 1 ,184:,21 5. Patented May 23, 1916.

3 SHEETSSHEET 1.

Q] (fa/7023621 J. J. SANTIN.

DOOR CHECK.

APPLICATION FILED AUG-25. 19l5.

- Patented May 23,1916.

3 SHEETS-SHEET 3' STATES PATE JAMES J. SAN'IIN, 0F RENO, OKLAHOMA.

DOOR-CHECK.

Specification of Letters Patent. Patented May 23, 1916,

Application filed August 25,1915. Serial N 0. 47,273.

' To all/whom it may concern 1 1 T Be it known that I, JAMES .J. SANTIN,

I a citizen ofthe United States, residing at El Reno, in the county ofCanadian and StatexofOklahoma, have invented certain new 7: and usefulImprovements in Door- Ghecks; of. which the following is aspecification. 7 p I j. i

This invention relates todoor checks and has for its object theprovision of a simple,

' easily applied andeff cient device by which the closing movement-of, adoor will be checked or retarded so that slamming ofthedoor will beprevented while positive closing of the same will be accomplished:

7A further object vofthe invention is to provide a door checkvwhich willnot be dependent upon fluid or liquid pressure and which will,therefore, be inexpensive to maintain, and a still further object of theinvention is; to provide a device 7 for the stated purpose which maybeeasily rendered f inoperative when so desired.

Other objects of the invention will appear as the description of thesame proceeds, and the invention resides in certain novel features whichwill be particularly pointedout in the'claims following the description.

The invention is fully illustrated-in the annexed drawing, in which: v

Figure l is a side elevation of my improved door check, showing the samein. its

operative position; Fig. 2 isv a plan viewthereof; Fig. 3 is anenlargedvertical section on the line 3-3 of Fig. 2; Fig. is a sectiontakenon the line 4-4 of F g. 2;

'Figs. '5 and;6 arev plan views showing different positions of the partsto illustrate the operation; Fig. 7 is a-detail perspective view.

.In the drawings, the reference numeral 1 indicates a swinging door and2 the frame within which the door is mounted- In carrying out myinvention, I secure to the door frame, immediately above the door,.amain frame or bracket consisting of a vertical back portion or plate3'which is adapted to Ifit directly against the door frame or againstthe wall and has a forwardly extending hori- I zontal bar or base plate4proj ecting fromits lower'edge. "At the upperend of the back plate orstandard 3 is a. lug 5 to whlch is secured a forwardlyprojecting bar or'arm v6 which isadapted to support the upperend of. a rotary shaft 7having its lower. end

stepped in the supporting bar 4. If so desired, a cyllndrlcal housingorcasing. may be secured over the upper keeperiarm or bracket 6by the samerivet 8 whichsecures said arm gularopening in a pinion 11 and a similaropening in a cross bar 12 disposed above the pinion. It w ll be readilynoted, upon reference to Figs. 3 and 4, that the pinion rests upon andsupported by the lower bar 4 and the crossbar 12 may rest directly uponthe pinion. The ends of the cross bar 12 are. notched or slotted, asshown at 13, and in the said notched or slotted ,portlons are pivotallymounted the governor arms 14which extend-upwardly from the sa d crossbarand areprovided at their upper ends With weights. 15, as clearly shown.Springs 16 extend between the governor arms 14 and the shaft 7 so as tonor: mally holdthe governor arms retracted, as indicated in Fig. 3. Thelower ends of the governor arms are turned outwardly, as

shown at 17, to provide presser fingers which idly by the endsiof thebar 4. The'presser fingers or feet 17 may bear directly upon the brakeringwl8, but I prefer to attach to the ends of the cross bar 12 aloosely mounted ring or shoe 19 which extends under the fingers orpresser feet 17 so that, when the said feet are thrown downwardly in the0pera'tion of the device, the shoe will be forced against the brake bandand an extended bearing against the said brake bandeffeeted, therebymore effectually retardingthe movement of the door andpreventingslamming of the same. i Y

I The pinion 11 is engaged by a rack bar 20 which is of the peculiarogee shape shown in F igs. '2, 5 and 6, whereby, as the door swingseither to or from the closed position, therack bar will conform to theanclosing movement of the door. The rack bar passesover and is supportedby the bar 4 and is held to the bar but permitted a slight lateral playby a pin or other keeper .1

21 rising from the said bar; As shown most clearly in Fig. 2, one endOftherack isfree, while the other end thereof is pivotally con-1 "nected,to a lever 22 having its inner end pivotal'ly supported byfa bracket 23secured to the door 1'at the'upper edge thereof.

The innerend 'of this lever is turneddownwardly betwe'en-itspivotalattachmentfwith theibracket'28andthe door so as top'rer sent :1depending stem 'orcbranch 2 1. A

spring is coiledaround'ithis depending portion 24 and has its; lowerendjsecu'red to? said branch or stem and its upper end- 7 7 secured to"the bracket 23' whereby,-;when

2 the door immediately upon the openingforce ing emoved. I I l V 7 the:door is opened, the torsional tension of thes'pringwill be increasedand the spring will expand or tend to unwind and-close "A link orsupplemental lever 26 1m its outer end 'pivotally connected" toth'elever 22-and the 'rackbar 20 at the point of pivotal connection betweensaidmembers and the inner end 'of this'link jor s'upplemental" lever ispivoted to a bracket; 27 secured to; the door frame immediately abovethe door opening and between theplane o'fithe door hinges and theverticalplaneoccupied by the bracket 23 when thedoor' is closed.- Theboltor pin 28, which constitutes the pivotal connection betweenthelevers 22 and'26 and the rack bar 20, projectsabove the said levers,asshownmost clearly inFig; 4:, and a spring "29: is coiled aroundthesaid pivot between i of the device will be readily understood from:

the link or lever 26 and a nut or washer"30 upon the pivot so as tomaintainthepiw 1 7 fotal connection between the levers'and the rack bar,while at the same timepermitting' a slight vertical movement ofsaid'members so asrto prevent the binding J and consequent breakage ofany of thezparts a; i It is thought the operation and'adva'ntages Itlie'foregoing de'scription taken in connec- 'tion with the accompanyingdrawings; The normal position of the parts, with the door closed, isillustrated in Figs. 1 and 2. The initial movement of the door. is "awayfrom the wall or door frame ratherjthan across edge to..the keeper "21and the engag'ement V of 7 this edge with the keeper swings, the end" ofthe rack towardthepinion. Theclosingf movement of thedoor will initiallyimpart,

to therack through the pivotj28,a-bodily' itively' engage the pinion andtherack is rackbar to the pinion; The, openingmove' movement parallelwith the face tithe-near; it i 7 frame so'thatthe rack willbecaused'topos- 5 connection with the lower end of the lejv er 22 willmove said. lever a'ndthe door toward be" carried" into me'shi with he-13111101 141,

' when the door startsito cl'ose',i'as1above'de scrib'ed,-and;the'pi-nionwillithen berotated v duringthe'closing inovement "Therotation V of the piniohwill actuate-theshaftl'l 'and throughfit swingthe cross bar 12 in a h'ori-1 'zontal plane. 'The rotaryi movement-liefthe ernor arms 14 in"a circl'efabout-theshaft 5 asa center and,ift-he-speedof'rotation be?" comes excessive, the tension ofthe springs16 will be overcome' and the, weights lii' W111- swing outwardly under"the; action offceng' tri'fu'gal forceL- When the :weights swing readilyunderstood; L 1 1,

a It" will thus be readilvhseen that Igh 'provided a very simple devicewhich may be r 11001 a outwar'dl-y-', the "arms14c will,"of coursegfbeswung about their pivotal supports and the j V fee t or presser fingers17 'will' be'moved L downwar'dly so as 1 to presslkthe. shoe 19 againstthe-brake 18. i'Asfth e brake 11,05 band 18 is stationary, being securedrigidly ff to the supportingbracket orframe; the 611-] it 'gagement ofthe shoewith sai'd band will at once create a frictional resistance.which 'will retard the rotation of the shoe'and the crossbar "12,"'theshaft-7 and the pinion- 11 i to lessenthe speed of. the rackbar 20 and pthe closing movement of thedoor; as-will be applied to any doo'r'xat alow cost; and which 7 be broken or damag'edithro'u'gh' accident; or

will very efficiently resist the closing" action of the door so as toprevent slamming of the same and permit the d' oorto close ful'lybutquietly, fAs my device ean be veryeconomi- 1 'cally' produced andapplied, it' is especially 1 r desirable for attachmenttoscreendbjors'or. I other idoorsrwhich are of lightweighting7vapparatus willfoccupy very llittle"*space fwhe'nfin useiiandrmay be:easily appli eithe'i a right hand or left h'and' door;

parts are nrsimpnanu: should. ahyoneipart ment-of the door will 'wlndathespr ng- 25 and, when the door is: released; thejspring will at oncetend to unwindand througlriits i i the normal close'dicpositronv Theraek w ll removed and a new part'substituted without requiring theprovision of an entirely new door check. 7

Having thus described the invention, what is claimed as new is: I a

'1. The combination of a vertically disposed shaft, a pinion fixed tosaid shaft, a

rack bar adapted to directly engage said pin frame, a brake band securedrigidly upon said bracket, a rotary shaft mounted in said bracket, across bar carried by said shaft immediately above the brake band,governor arms pivotally mounted in the ends of said cross bar, a brakeshoe loosely mounted on the cross bar, presser fingers at the lower endsof. the governor arms bearing upon the brake band to carry the same intofrictional engagement with the brake band, means for I centrifugallymoving said governor arms outwardly, a lever adapted to be secured tothe door, connections between said lever-and said shaft, and a springconnected with said lever and adapted to be placed under tension whenthe door is opened and to act on said lever'and close the door whenreleased.

3. The combination of a shaft, a centrifugal governor connected with theshaft, a

pinion on said shaft, a rack bar extending copies of this patent may beobtained for past said pinion and adapted to engage the same, a leveradapted at one end to be pivot ed to a door and pivoted at its oppositeend to oneend of the rack bar, the remaining end of the rack bar beingfree, a link pivoted at oneend to the pivot connecting the rack and thelever and adapted to be pivoted at its opposite .end to the door frameabove the door, and a spring acting on the lever to close the door.

4. The combination of a shaft, a centrifugal governor connectedtherewith, a pin ion on said shaft, a lever pivoted at one end to adoor, a rack of ogee form pivoted at one end to the outer end of thesaid lever and having vits opposite end free, said rack extending pastthe, pinion. and adapted to mesh with the same, a link pivoted at oneend to the door frame and at its opposite end to the lever and the rack,and a spring acting on the lever to close the door.

5. The combination of a shaft, a centrifugal governor connectedtherewith, a pinion on said shaft, a lever pivoted at one end to a door,a rack of ogee form pivoted at one end to the outer end of said leverand having its opposite end free, said rack extend five cents each,'byaddressing the Commissioner of Patents. Washington, D. G.

